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Contract OI history

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Nov 20, 2026 EXPIRATION

ECO $25.00 Put

ECO261120P00025000

Latest saved OI3,500Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ECO $25.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3,5001,7500 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 0 OI2026-10-07: 0 OI2026-10-08: 0 OI2026-10-09: 200 OI2026-10-13: 200 OI2026-10-14: 3,000 OI2026-10-16: 3,500 OI2026-10-21: 3,500 OI2026-10-23: 3,500 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ECO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3,5000
Oct 21, 20263,5000
Oct 16, 20263,500+500
Oct 14, 20263,000+2,800
Oct 13, 20262000
Oct 09, 2026200+200
Oct 08, 202600
Oct 07, 202600
Oct 06, 202600
Oct 05, 202600
Oct 02, 20260No prior observation